* sugar can have only one activity version installed at the same time i.e. it could be useful to have several versions simultaneously e.g. to start proper version when join request arrived(activity version of arrived request could be different to installed version) | * sugar can have only one activity version installed at the same time i.e. it could be useful to have several versions simultaneously e.g. to start proper version when join request arrived(activity version of arrived request could be different to installed version) |